Commit Graph

201 Commits

Author SHA1 Message Date
Christoph Kords 44eb771583 added crystallite output of current ip coordinates 2013-03-27 10:12:28 +00:00
Franz Roters 02f092492e updated copyright header 2013-03-22 17:35:05 +00:00
Martin Diehl 7e0ea5dd04 hickups in doxygen documentation fixed 2013-03-05 14:35:26 +00:00
Martin Diehl ada2beb8b8 reorganized calculation modes for CPFEM, now having better readable and cleaner structure 2013-03-01 11:48:29 +00:00
Christoph Kords 875abcd06f replaced some array assignments, which might have caused trouble when using the "timeSyncing" option, by parallelized loops of scalar value assignments 2013-02-27 16:36:12 +00:00
Christoph Kords 3736ab1d97 added shortcuts for two do loops in the "timesyncing" procedure
math_pDecomposition enclosed by omp critical statement; somehow, this subroutine is not thread safe, not clear what exactly the problem is
2013-02-27 10:32:37 +00:00
Pratheek Shanthraj 07ff1f7c93 reporting current time for most module inits 2013-02-25 16:34:59 +00:00
Martin Diehl 393c60565d one line was beyond 132 characters 2013-02-22 05:38:02 +00:00
Martin Diehl 42b96354db doxygen comments 2013-02-21 23:08:36 +00:00
Martin Diehl f0b4281400 removed unused variables, added pure statements, and declared external functions as external (using gfortrans debug option) 2013-02-11 10:43:45 +00:00
Martin Diehl e74b5da19a changed all remaining routines to fortran-fast arrays (geometry reconstruction etc.)
changed all remaining routines in f2py to more clever determination of array size (requires f2py >= 2.0)
enabled 3D visualize to work with odd resolution by switching to linear reconstruction
PLEASE NOTE: Redefinition of routines for f2py might cause trouble -> DELETE DAMASK_ROOT/lib/damask/core.so in this case
further changes: added pure statement where possible, polished, unified use of "Q" for "Quaternion" and reordered math to have similar routines together
2013-01-31 16:28:08 +00:00
Martin Diehl 3ffd6499b1 change bash-only "let" to "`expr`", abaqus_v6.env now suppresses warnings about long lines (there are only comments anyway) 2013-01-28 15:30:51 +00:00
Pratheek Shanthraj fd94c786f0 moved stiffness tensor calculation to lattice
introduced 'isotropic' and 'orthorhombic' lattice types to use corresponding symmetries in stiffness tensor. intended to be used with non-crystal plasticity models (j2, constitutive_none with isotropic, cubic or orthotropic elasticity).
2013-01-21 21:57:26 +00:00
Christoph Kords 8a45a90775 new crystallite output "grainrotationX", "grainrotationY", "grainrotationZ" that gives the deviation of the initial orientation in degrees around the sample reference x/y/z axis, while "grainrotation" still gives the same as axis angle pair in crystal coordinates 2013-01-16 08:45:41 +00:00
Christoph Kords 7dd1130e92 reset syncSubFrac flag when turning terminallyIll 2012-12-16 16:18:36 +00:00
Christoph Kords 92d2c83334 more debugging info for timesyncing 2012-12-16 11:30:19 +00:00
Christoph Kords 4f12073dcb once again corrected parallelization statements
added some debugging writes for timesyncing
2012-12-16 10:54:13 +00:00
Christoph Kords f744fc1d47 fixed bug in parallelization: flushing of crystallite_todo was missing at a couple of places 2012-12-11 15:05:08 +00:00
Christoph Kords 6a9b19e4c0 fixed bug in timesyncing procedure: if any ip that synchronizes its time step did not converge, all nonlocals become terminally ill; before, this led to an infinite loop in crystallite 2012-12-11 13:42:22 +00:00
Christoph Kords 35a0483507 fixed bug in last revision: FE_geomType was not in namespace 2012-12-10 17:22:16 +00:00
Philip Eisenlohr 10ed848258 fixed 2 bugs: missing mapping with FE_geomtype(mesh_element(2,...)) 2012-12-10 17:03:28 +00:00
Christoph Kords 98d02dcffb removed call to microstructure in stateJump function, since this is already done in the state integrator subroutine 2012-12-07 07:50:41 +00:00
Christoph Kords 0986a66449 accidentally also included some changes in crystallite_integrateStress in last commit; reverted these changes in this revision 2012-12-03 16:34:41 +00:00
Christoph Kords f2dacb5f40 polished debugging output 2012-12-03 16:29:54 +00:00
Christoph Kords f92d34dd22 removed some unused variables 2012-11-29 18:44:00 +00:00
Christoph Kords e10000a338 Introduced an alternative cutback scheme for the nonlocal model, that allows to keep the results of most of the ips that immediately converged, and only do cutbacks in regions where some ips are in big trouble. Only works for nonlocal model and state integrator 2. 2012-11-27 18:36:55 +00:00
Christoph Kords e584c0e6e8 deleted space in front of preprocessor line 2012-11-22 20:04:33 +00:00
Christoph Kords 38ec462f4a order of integration now same for all state integrators: first calculate the dotState and then the deltaState 2012-11-22 13:04:19 +00:00
Philip Eisenlohr 7d196fbb25 polishing 2012-11-22 09:58:36 +00:00
Philip Eisenlohr d189a6a7a0 polishing 2012-11-21 16:57:57 +00:00
Christoph Kords 760af1fbbf crystallite_requested now masked by execIP, now elemhomogeneous works again 2012-11-19 15:13:48 +00:00
Christoph Kords 9fb94cd707 breaking crystallite loop in case of terminally ill (this functionality was probably lost since rev1886) 2012-11-19 08:39:48 +00:00
Philip Eisenlohr d9a98417ca switched element library to geomType based.
saves to copy same geometry description for different elements that are essentially similar regarding the IP number but differ in total node count.

introduced quadratic tetrahedron (Marc element 127 -- element 157 might also work, but did not perform well in fully elastic calc so far)
2012-11-15 22:45:20 +00:00
Christoph Kords 11264f3fe4 forgot to check for convergence flag in FPI integrator 2012-11-08 20:15:19 +00:00
Christoph Kords 60438cdbcc criterion for crystallite cutback loop changed from crystallite_subStep to crystallite_todo; this avoids problems when the last substep of the crystallite increment is below subStepMinCryst (which is allowed during last wind forward)
fixed bug in the adaptive Euler integrator and the RK4 integrator, which could not reach the stateJump function, because of erroneous check for converged flag; also corrected the state counter for the RK4 integrator
2012-11-08 20:00:29 +00:00
Christoph Kords c775edaa6d better avoid initialization of residuum_old with huge, since it posed problems in Abaqus 2012-11-08 13:26:22 +00:00
Christoph Kords dad9922f54 fixed bug in crystallite_FPI: stateDamper always has to be defined for each grain
added some OMP FLUSH statements were necessary 
replaced openmp do by forall construct where possible; this is much safer and perhaps even as fast for small loops
2012-11-07 15:43:29 +00:00
Christoph Kords bb033c5fe7 Simplified algorithm of crystallite_integrateStress while preserving (almost) same functionality.
Removed "leapfrogging" (increase of step for next guess, when last guess was ok); Replaced Armijo rule testing for step size by simple check if the residuum got better, since the former virtually did not have any effect; consistently using the 2-norm of the residuum rather than infinity-norm for the convergence check throughout the function
2012-11-06 12:35:45 +00:00
Christoph Kords 639d6e0655 inserted missing flush(crystallite_todo) in parallel section; might have caused trouble in parallel calculations before 2012-11-05 14:45:52 +00:00
Martin Diehl 086fe138b1 substituted matrix inversion to solve equation by direct solution routine from LAPACK 2012-10-31 09:56:26 +00:00
Christoph Kords 2be331b74d In crystallite for state integrators 2 and 3: now that "stateJump" is called before integrating dotState, we have to do state = state + dotState *dt instead of state = subState0 + dotState * dt; otherwise the deltaState is lost 2012-10-22 13:34:15 +00:00
Christoph Kords 0980920b66 In crystallite: for state integrators 2 and 3 the deltaState always has to be done at the beginning of the integration, not at the end; otherwise the stiffness calculation can be completely wrong, when the state is changed after the stress integration for the central solution.
Also changed some debugging levels in crystallite and mainly in constitutive_nonlocal
2012-10-22 07:59:35 +00:00
Christoph Kords 36676029e1 for state integrator 2 (explicit euler) and 3 (adaptive 2nd order euler): don't do any state evolution during stiffness perturbation, but only stress integration, since for those cases the state is not restored after every perturbation step 2012-10-19 11:20:31 +00:00
Philip Eisenlohr dd5f453994 mainly cosmetics. added some comments. changed debug levels for some outputs. corrected (probably non-essential) check for NaN in FPI stressIntegrator. 2012-10-18 09:53:26 +00:00
Christoph Kords 5f0440fde3 crystallite_integrateStress now raises an error if Fp becomes NaN 2012-10-17 16:19:42 +00:00
Martin Diehl 0bcb8f59db added doxygen comments, some polishing, added "protected" statements where applicable 2012-10-02 12:53:25 +00:00
Martin Diehl 22812c9a91 some minor improvement on precision detection: checking only once (in prec and no longer in math and crystallite), added one more 4/8 switch for LAPACK, as there is no single precision FFTW, stopping compilation for spectral method if FLOAT=4
new function in IO to print integers without leading zeros, implemented it at some places in the new spectral solver (reporting still needs some serious polishing)
updated preprocessing for documentation to handle precision correctly
2012-08-30 20:26:28 +00:00
Martin Diehl 0959ff3299 substituted hand written matrix inversion by LAPACK version with precision selection.
also introduced check for inversion into DAMASK_spectral_Utilities.f90 for the stress BC calculation. This part is further improved by using 5% of the reference stiffness to avoid trouble in the fully plastic regime (where the stiffness is underestimated)

Test for Marc 2010 is updated because the new inversion give slightly different results near 0 (order of e-13)
2012-08-28 16:59:45 +00:00
Christoph Kords ad7381cfdd maximum relative step length in stress integration cannot decrease below 1
intermediate tensor "A" is calculated only once before the Lp loop in "integrateStress"
2012-08-21 08:53:36 +00:00
Christoph Kords c1c5941733 stressAndItsTangent:
when winding forward to last substep in increment, also do the calculation if this substep is below "subStepMinCryst";
output of "wind forward" and "cutback" info only for crystallites that are still "todo"

integrateStress:
maximum component in Lp determines absolute convergence criterium:
aTol = max(maxLpComp * rTol_fromConfig , aTol_fromConfig)
this ensures that small values in Lp do not spoil the convergence, similar to the effect of the relevantStrain parameter before (not needed anymore in the stress integration)
2012-08-14 12:07:59 +00:00